sit-ski
n.— «Of course, this is done while skiers are strapped into a seat and perched atop a shock absorber and a single ski. The rig is sometimes called a “sit-ski.”» —“Winter X Games: One ski, but twice the fun” by Ken Gordon Columbus Dispatch (Ohio) Jan. 24, 2008. (source: Double-Tongued Dictionary)
Further reading
A member of the ski patrol at Vermont’s Sugarbush Resort shares some workplace slang. Boilerplate denotes hard-packed snow with a ruffled pattern that makes skis chatter, death cookies are random chunks that could cause an accident, and...
Astronauts returning from space say they experience what’s called the overview effect, a new understanding of the fragility of our planet and our need to reflect on what humans all share as a species. A book about the end of the universe...